Molecular dynamics study of thermal phenomena in an ultrathin liquid film sheared between solid surfaces: The influence of the crystal plane on energy and momentum transfer at solid-liquid interfaces

2005 ◽  
Vol 122 (21) ◽  
pp. 214717 ◽  
Author(s):  
Taku Ohara ◽  
Daichi Torii
Keyword(s):  
Molecular Dynamics ◽  
Liquid Film ◽  
Momentum Transfer ◽  
Solid Surfaces ◽  
Crystal Plane ◽  
Liquid Interfaces ◽  
Energy And Momentum ◽  
Thermal Phenomena ◽  
Solid Liquid

Adsorption of surfactants at solid/liquid interfaces

Surfactants ◽  
2019 ◽  
pp. 130-155
Author(s):  
Bob Aveyard
Keyword(s):  
Strong Influence ◽  
Langmuir Equation ◽  
Solid Surfaces ◽  
Polymeric Surfactant ◽  
Fluid Interfaces ◽  
Liquid Interfaces ◽  
Free Energies ◽  
Micellar Aggregates ◽  
Diffuse Part ◽  
Solid Liquid

The physical properties of solid/liquid interfaces are more diverse than those of liquid/fluid interfaces, and consequently the interactions giving rise to adsorption of surfactant or polymeric surfactant are more varied. Solid surfaces can be either hydrophilic or hydrophobic, the former being water-wetted and containing polar or ionogenic sites. Electrical charge at the solid surface is neutralized by ions in the inner and outer Helmholtz planes and in the diffuse part of the electrical double layer. Surface charge has a strong influence on adsorption of ionic surfactants. Standard free energies of surfactant adsorption are obtained by use of an appropriate adsorption isotherm such as the Stern–Langmuir equation. Micellar aggregates of various shapes and sizes can also form at solid/liquid interfaces.

A molecular dynamics study of heat transfer over an ultra-thin liquid film with surfactant between solid surfaces

2019 ◽  
Vol 126 (18) ◽  
pp. 185302 ◽  
Author(s):  
Yuting Guo ◽  
Donatas Surblys ◽  
Yoshiaki Kawagoe ◽  
Hiroki Matsubara ◽  
Taku Ohara
Keyword(s):  
Heat Transfer ◽  
Molecular Dynamics ◽  
Liquid Film ◽  
Thin Liquid Film ◽  
Solid Surfaces
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